4 brainliest...can humans breathe?

Yes humans can breathe

Explanation:

Warm-blooded animals like whales breath air like people do because it would be hard to extract enough oxygen using gills. Humans cannot breathe underwater because our lungs do not have enough surface area to absorb enough oxygen from water, and the lining in our lungs is adapted to handle air rather than water.

:l

answer; (false);

answer 2 is the right one. jim should measure his snack to make sure he is using the right serving size.